Label	Element	Value
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	$ (1,050,000)
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	(534,000)
Other Comprehensive Income (Loss), Net of Tax	us-gaap_OtherComprehensiveIncomeLossNetOfTax	327,000
Other Comprehensive Income (Loss), Net of Tax	us-gaap_OtherComprehensiveIncomeLossNetOfTax	315,000
Stock Issued During Period, Value, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan	3,743,000
Stock Issued During Period, Value, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan	3,772,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	961,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	897,000
Retained Earnings [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	408,766,000
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	317,420,000
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	344,301,000
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	26,881,000
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	16,485,000
Common Stock [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	356,043,000
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	352,424,000
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	$ 363,600,000
Common Stock, Shares, Outstanding	us-gaap_CommonStockSharesOutstanding	16,849,026
Common Stock, Shares, Outstanding	us-gaap_CommonStockSharesOutstanding	16,915,670
Common Stock, Shares, Outstanding	us-gaap_CommonStockSharesOutstanding	16,988,340
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	$ (534,000)
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	(1,050,000)
Stock Issued During Period, Value, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan	3,772,000
Stock Issued During Period, Value, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan	3,743,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	897,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	$ 961,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised	16,212
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised	20,923
Stock Issued During Period, Shares, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan	45,591
Stock Issued During Period, Shares, Employee Benefit Plan	us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan	45,721
AOCI Attributable to Parent [Member]
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	$ (49,491,000)
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	(49,176,000)
Stockholders' Equity Attributable to Parent	us-gaap_StockholdersEquity	(50,846,000)
Other Comprehensive Income (Loss), Net of Tax	us-gaap_OtherComprehensiveIncomeLossNetOfTax	315,000
Other Comprehensive Income (Loss), Net of Tax	us-gaap_OtherComprehensiveIncomeLossNetOfTax	$ 327,000